When will the "Mystic Dragon" monsters from Blair Flannigan's deck be released?

Question

ie, Mystic Egg, Mystic Baby Dragon, Mystic Dragon, Mystic Revolution

Answer 1

most likely it will never be released. those are just some of the cards you'll only see in the anime

Answer 2

Never, those are anime only cards.

Blair only got 1 true on-screen duel and that was back in season 1 against Jaden. She is nothing but a minor character, and now that GX is over with, there is not chance of any support character's cards being released.